![]() ![]() Details of the combining process vary between the NTSC, PAL and SECAM systems. The color video signal is a linear combination of the luminance ( Y Y ) of the picture and a modulated subcarrier which carries the chrominance or color information ( C C ), a combination of hue and saturation. Signal components NTSC composite video signal (analog)Ī composite video signal combines, on one wire, the video information required to recreate a color picture, as well as line and frame synchronization pulses. ![]() There are three dominant variants of composite video signals, corresponding to the analog color system used: NTSC, PAL, and SECAM. ![]() In professional settings, or on devices that are too small for an RCA connector, such as a digital camera, other types of connectors can be used.Ĭomposite video is also known by the initials CVBS for Composite Video Baseband Signal or Color, Video, Blanking and Sync, or is simply referred to as SD video for the standard-definition television signal it conveys. Video information is encoded on one channel, unlike the higher-quality S-Video (two channels) and the even higher-quality component video (three or more channels).Ī yellow RCA connector is typically used for composite video, with the audio being carried on separate additional L/R RCA connectors. On consumer products a yellow RCA connector is typically used for composite video.Ĭomposite video is an analog video signal format that carries standard-definition video (typically at 525 lines or 625 lines) on a single channel. ![]()
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